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Use ir_dereference::set_swizzle

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This commit is contained in:
Ian Romanick
2010-03-24 15:25:23 -07:00
parent 2f4240fb02
commit afbe26fd61
1 changed files with 3 additions and 22 deletions
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25
hir_field_selection.cpp
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@@ -34,7 +34,7 @@
#define I 13
static bool
generate_swizzle(const char *str, struct ir_swizzle_mask *swiz,
generate_swizzle(const char *str, ir_dereference *deref,
unsigned vector_length)
{
/* For each possible swizzle character, this table encodes the value in
@@ -75,8 +75,6 @@ generate_swizzle(const char *str, struct ir_swizzle_mask *swiz,
int swiz_idx[4] = { 0, 0, 0, 0 };
unsigned base;
unsigned dup_mask = 0;
unsigned seen_mask = 0;
unsigned i;
@@ -90,8 +88,6 @@ generate_swizzle(const char *str, struct ir_swizzle_mask *swiz,
for (i = 0; (i < 4) && (str[i] != '\0'); i++) {
unsigned bit;
/* Validate the next character, and, as described above, convert it to a
* swizzle index.
*/
@@ -101,26 +97,12 @@ generate_swizzle(const char *str, struct ir_swizzle_mask *swiz,
swiz_idx[i] = idx_map[str[0] - 'a'] - base;
if ((swiz_idx[i] < 0) || (swiz_idx[i] >= (int) vector_length))
return false;
/* Track a bit-mask of the swizzle index values that have been seen. If
* a value is seen more than once, set the "duplicate" flag.
*/
bit = (1U << swiz_idx[i]);
dup_mask |= seen_mask & bit;
seen_mask |= bit;
}
if (str[i] != '\0')
return false;
swiz->x = swiz_idx[0];
swiz->y = swiz_idx[1];
swiz->z = swiz_idx[2];
swiz->w = swiz_idx[3];
swiz->num_components = i;
swiz->has_duplicates = (dup_mask != 0);
deref->set_swizzle(swiz_idx[0], swiz_idx[1], swiz_idx[2], swiz_idx[3], i);
return true;
}
@@ -158,8 +140,7 @@ _mesa_ast_field_selection_to_hir(const ast_expression *expr,
loc = expr->get_location();
if (op->type->is_vector()) {
if (generate_swizzle(expr->primary_expression.identifier,
& deref->selector.swizzle,
op->type->vector_elements)) {
deref, op->type->vector_elements)) {
/* Based on the number of elements in the swizzle and the base type
* (i.e., float, int, unsigned, or bool) of the vector being swizzled,
* generate the type of the resulting value.